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The Hirose HR30 Series is a family of circular connectors designed for use in portable equipment and industrial systems where frequent connection and disconnection are required. These connectors are compact, lightweight, and feature a push-pull lock mechanism that enables secure mating with minimal insertion force. They are available in multiple pin counts and support signal and low-power transmission, with housings designed to maintain mechanical reliability under repeated mating cycles. Environmental resistance is addressed through sealing structures that provide protection against dust and water ingress, supporting outdoor and field applications.
The LF Series connectors from Hirose focus on board-to-board and wire-to-board interconnects for applications that require compact layouts and high connection density. The series includes multiple variations optimized for different pitches, stacking heights, and current capacities. The connectors are designed to maintain stable contact resistance, even in conditions involving vibration or thermal cycling, which makes them suitable for automotive electronics, consumer devices, and industrial controllers. Surface-mount technology (SMT) terminations are common across the LF Series, enabling automated assembly and integration into high-volume PCB manufacturing.
From a technical perspective, both series address key interconnect requirements but in different application spaces. The HR30 Series emphasizes mechanical durability, ease of handling, and environmental sealing, making it appropriate for medical devices, measurement instruments, and portable industrial tools. In contrast, the LF Series emphasizes miniaturization, electrical reliability, and layout flexibility, supporting dense PCB designs where saving board space is a priority. The combination of various stacking heights, mating orientations, and pitches allows engineers to balance current handling and mechanical strength against system size constraints.
Applications of the HR30 and LF connectors span a wide range of equipment designs. The HR30 Series is commonly deployed in portable devices that need field connections, such as cameras, handheld instruments, or outdoor sensor modules. The LF Series is widely used in electronics requiring stable, compact, and repeatable interconnects, including automotive control units, industrial machinery, and consumer products. To learn more, visit Avnet.com.